Ore-separator.



. PATENTED APR. 10, 1906 G. MOORE. ORE SEPARATOR.

APPLICATION FILED FEB. 16, 1906.

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G. MOORE. ORE SEPARATOR.

APPLICATION FILED FEB.16, 1906.

2 SHEETS-SHEET 2 GEORGE MOORE, OF LONDON, ENGLAND.

ORE-SEPARATOR- Specification of Letters Patent.

Patented April 10, 1906.

Application filed February 16, 1906. Serial No. 301,466.

To alt whom it may concern:

Be it known that I, GEORGE MOORE, a subject of the King of GreatBritain, residing at N o. 46 Leadenhall street, London, England, haveinvented a new and useful Improvement in Ore-Separators, of which thefollow ing is a specification.

The object of the invention is to recover as nearly as possible from orethe whole of the gold or other valuable particles, while the machineryissimple and easily worked, cheap, not likely to get out of order, andthoroughly effective for the desired purpose.

In the accompanying drawings, Figure 1 is a side view of my improvedseparator. Fig. 2 is a plan view thereof. Fig. 3 is a transverse sectionthereof, and Fig. 4 is a detail view showing the double belt.

In order to put my invention into operation, I make a strong frameworkconsisting of a base a, two side frames 1) b, and two end frames 0 c, ofwood or of angle-iron or bars strongly fitted and riveted together. Theframe is rectangular in plan, as shown in Fig. 2, and of great length(which may be varied, as maybe found desirable) in comparision with itswidth, while one end is considerably higher than the other, so that thetop, which is open excepting the angle or channel iron frame (Z roundit, slopes down from the upper end to the lower one. The angle of theslope may be determined as may be found most effective.

Across the outer side of the upper end of the frame are arranged twohorizontal spin-- (lles e a, revolving in bearings f, carried uponbrackets g, fixed to the end frame or upon the end frame itself, andupon the spindles e e are fixed two drums h h, the outer sides of whichare near the bearings, while their inner ones are separated, so as toleave a considerable space between them, and bearings i j are arrangedfor the spindles in this space. At the other or lower end of theinclined frame similar transverse spindles 7c it, exactly parallel withthe first or upper ones 6 e, are arranged in bearings Z, fixed upon aframe m,

carried upon the horizontal projecting ends of the base of the frame,and preferably provided with adjusting-screws at n, by which thebearings can be separated from or made to approach those at the upperend. These lower spindles 7r 1: are provided with drums 0 0, preferablyof the same diameter as and parallel and in a line with those h h at theupper end already described.

Round each pair of upper and lower drums are fitted endless belts p, ofcanvas and indierubber, or rubber or balata, compressed paper, or othersuitable material. The outer surfaces of these bands or belts areprovided with continuous flexible flanges g, projecting for a shortdistance from the edges of the band, so that they form, with the outersurface of the band itself, a species of trough or sluicebox.

At the upper end of the frame I arrange spindles r, revolving inbearings 8, carried by the frame directly below the upper ones alreadydescribed, and having fixed upon them two similar drums t, preferably ofthe same diameter as the upper ones. The endless flexible flangedbands 1) after passing over the upper drums h pass down and round thelower ones 15 before passing forward to. the drums 7r at the lower endof the frame. At or near the center of the length of the frame I arrangeparallel transverse spindles a, having drums o o revolving freely, overwhich the lower returning part of the endless bands p pass, the spindlesa being at such a height that the endless bands p are raisedconsiderably as they pass over them.

Upon the outer ends of the lower transverse spindles at the upper end ofthe frame I fix worm-wheels w, each operated by a worm 00 upon a shorthorizontal spindle y upon each side of the machine, the spindles beingconnected by beveled toothed wheels 2, with a transverse spindle 1,turning in bearings upon the base of the machine and driven by a pulley2, fixed upon it and made to revolve slowly by any convenient power, sothat the drums h h at the upper end of the machine are set in revolutionat any desired speed, causing the endless bands p to travel slowlyalong, their upper parts moving from the lower to the upper end of theframe. I arrange clutches or disengaging gear 12 of any suitable kindoperated by levers 3, by which the gear driving either or both of thebelts may be thrown out of gear when desired.

Instead of two parallel belts one belt only (preferably of greaterwidth) may be used, in which case only one set of spindles and drumsinstead of two, as described above, is necessary.

A sufficient number of freely-revolving rollers 4 of any suitablediameter are arranged across the upper part of the frame at suitabledistances apart, so as to support the belt 19 and the material upon itas it travels IIO along, and strong adjusting-screws 8 are fitted in thebase of the frame by which its' height can be adjusted, so that themoving belts are perfectly level transversely.

The material to be treated is admitted upon the upper part of the movingbelt 1), and a sufficient quantity of water is supplied through asuitably-arranged central longitudinal pipe 5, having a sufficientnumber of small transverse pipes 6, through which the water isdischarged upon the surface of the belt 1). These transverse pipes carryflexible waterproof curtains 9 of the kind hereinafter described. Branchpipes 7 are also arranged to supply water for washing the belt at theend where the concentrates collect and also to wash the under side ofthe belt.

The traveling band 1) may have, if preferred, on its outer face groovesor rifl les, and the surface (which catches the fine particles of goldor other material to be saved) may have a rough piece of burlap fixedupon it, either with or without a wire screen attached, or, ifnecessary, for gold recovery and the treatment of slimes a separate band11 may be used, as shown in Fig. 4, consisting of the burlap and wirescreen lying inside the main carrying-belt p, already described. In suchcases I make one of the belts (the outer one 1.1) longer than the other,(see Fig. 4,) so that it can pass as it travels along round a freelyrevolving transverse pulley 10, arranged between the two belts oppositethe drums h t at the higher end of the machine, so that the outer belt11 is drawn away round the loose pulley 10 (which does not touch theinner belt) and allows the separated surfaces of the two belts, whichare ordinarily in contact, to be washed and cleaned.

The flexible waterproof curtains or aprons 9, Fig. 1, are made of piecesof oil-cloth, indiarubber, or other suitable material, and theyordinarily lie loosely upon the bottom of the trough or sluice-box,their lower ends being free to rise or fall. The flow of water and pulpadmitted to the sluice is compelled to travel between the bottom of thelatter and these aprons, which therefore force the light particles downthrough the current and upon 1 the sluice-bottom. The lower ends of thecurtains at each corner are held in place by a loose wire connection toprevent their being drawn up when working intermittently, when as a rulethe movement is considerably quicker.

Having fully described my invention, what I desire to claim and secureby Letters Patent is 1. In an ore-separator, the combination of atraveling endless belt provided with side flanges, operating meanstherefor, and a second belt lying upon said first-named belt, andcomposed of an under layer made of a wire screen, and an upper layerformed of burlap, substantially as described.

2. In an ore-separator, the combination of a traveling endless beltprovided with side flanges, pulleys over which said belt runs, operatingmeans for saidbelt, a second belt lying within said first-named belt andbetween the flanges thereof, said second belt being composed of twolayers, the under layer being a wire screen and the upper layer beingburlap, and an idler-pulley over which said second belt runs to separateit for an interval from said first-named belt, substantially asdescribed.

In witness whereof I have hereunto set my hand in the presence of twowitnesses.

GEORGE MOORE.

Witnesses:

ALFRED T. BRATTON, H. D. JAMESON.

